Title:
異常検出装置
Document Type and Number:
Japanese Patent JP7189118
Kind Code:
B2
Abstract:
To provide an abnormality detection device in which a secular change or deterioration can be detected without opening and inspecting a brush pull-up device.SOLUTION: A brush pull-up device 100 of a main motor M1 includes collector electrodes CU, CV, CW of a winding-type induction motor, a short-circuit collar that short-circuits the collector electrodes, and a link mechanism LK that performs switching between a contact state and a separate state between the collector electrodes and brushes BU, BV, BW, and an operation motor M2 that operates the switching mechanism. An abnormality detection device 1 includes a current transformer 30 that detects an electricity parameter of the operation motor M2, a memory 12 that stores a basic waveform of the electricity parameter, and a CPU 11 that diagnoses an abnormality in the brush pull-up device 100 by determining the electricity parameter detected by the current transformer 30 on the basis of the base waveform read out from the memory 12.SELECTED DRAWING: Figure 1
Inventors:
Yasushi Sakata
Application Number:
JP2019225390A
Publication Date:
December 13, 2022
Filing Date:
December 13, 2019
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
H02K17/30; H02K17/12; H02P29/024
Domestic Patent References:
| JP2006054962A | ||||
| JP8098484A |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office
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